| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2024 | 49.47 | 61.03 | 38.98 |
| 2023 | 25.15 | 44.35 | 15.23 |
| 2022 | 23.54 | 29.9 | 14.9 |
| 2021 | 19.19 | 25.18 | 15.18 |
| 2020 | 25.25 | 34.44 | 20.85 |
| 2019 | 31.35 | 44.91 | 22.52 |
| 2018 | 21.59 | 32.66 | 12.37 |
| 2017 | 9.14 | 16.38 | 6.11 |
| 2016 | 7.31 | 9.58 | 4.64 |
| 2015 | 4.84 | 8.28 | 2.79 |
| 2014 | 2.64 | 3.6 | 2.03 |
| 2013 | 2.99 | 4.47 | 2.14 |
| 2012 | 2.19 | 3.42 | 1.73 |
| 2011 | 3.54 | 5.4 | 2.03 |
| 2010 | 5.14 | 6.46 | 4.24 |
| 2009 | 3.6 | 4.82 | 2.49 |
| 2008 | 3.57 | 5.54 | 1.75 |
| 2007 | 3.77 | 5.31 | 2.21 |
| 2006 | 2.38 | 3.3 | 1.79 |
| 2005 | 1.93 | 2.39 | 1.4 |
| 2004 | 3.24 | 4.46 | 2.19 |